ATI MilSport SBR 5.56 10.5" 10" M-LOK – High-Capacity Short-Barreled Rifle

The ATI MilSport SBR 5.56x45mm 10.5" 10" M-LOK (Model ATIG15MS556SBR10, UPC 810113114958) is a compact and powerful short-barreled rifle designed for shooters who need maximum maneuverability without sacrificing firepower. Chambered in 5.56 NATO, this SBR features a 10.5-inch barrel paired with a 10-inch M-LOK handguard, giving users plenty of rail space for optics, lights, grips, and other accessories. The rifle comes equipped with flip-up front and rear sights, an SR-1 adjustable stock, and includes a high-capacity 60-round magazine, making it one of the most feature-packed SBR packages available.

Built on the proven AR-15 platform, the ATI MilSport SBR delivers reliable performance in a short, lightweight configuration ideal for home defense, tactical training, vehicle use, and close-quarters scenarios.

Key Features of the ATI MilSport SBR 5.56 10.5"

Why Choose the ATI MilSport SBR 5.56 10.5"?

The ATI MilSport SBR in 5.56 NATO stands out as a highly capable short-barreled rifle that balances compactness with high-capacity firepower. The 10.5-inch barrel keeps the overall length short and maneuverable, making it ideal for home defense, CQB training, and situations where a full-size rifle would be too cumbersome. The 10-inch M-LOK handguard provides modern accessory mounting options while maintaining a lightweight profile. ATI includes a 60-round magazine with this model, giving shooters significantly more capacity than standard magazines right out of the box. The flip-up sights and SR-1 stock make this SBR ready to use immediately, while still allowing for easy upgrades. Built on the AR-15 platform, this rifle offers excellent reliability and a wide range of aftermarket support. Whether you’re looking for a compact home defense weapon, a tactical training rifle, or a high-capacity SBR for recreational shooting, the ATI MilSport SBR 5.56 delivers strong performance in a practical, feature-rich package.

Technical Specifications

The ATI MilSport SBR 5.56x45mm 10.5" 10" M-LOK (Model ATIG15MS556SBR10, UPC 810113114958) is a compact, high-capacity short-barreled rifle built for shooters who need a maneuverable yet powerful platform. Featuring a 10.5-inch barrel chambered in 5.56 NATO, this SBR offers excellent handling in tight spaces while maintaining the ballistic performance of the 5.56 cartridge. The 10-inch M-LOK handguard provides a modern, lightweight rail system for mounting optics, lights, vertical grips, and other accessories. ATI includes a 60-round magazine with this model, giving users significantly increased firepower compared to standard magazines. The rifle also comes with flip-up front and rear sights and an SR-1 adjustable stock for immediate usability and comfort. Built on the proven AR-15 platform, the MilSport SBR offers reliable function and broad parts compatibility for future upgrades. Whether used for home defense, tactical training, vehicle defense, or recreational shooting, this SBR delivers a strong combination of compactness, capacity, and performance. The ATI MilSport SBR 5.56 is designed for those who want a ready-to-run short-barreled rifle with modern features and high-capacity magazine support in one complete package.